Need Help Deciding on Layers (Replacing Queen Sized Casper Mattress)

Mattress Talk Materials, Specifications & Designs
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About us: 5’ 11" 165 lb wideish shoulders, but a twig from the chest down, 80% side sleeper 10% back 10% stomach. 5’ 2" 145 lb normal shoulders, but wide hips 90% side 10% back.

We are currently on a 7-year-old queen original Casper that, the best I can tell, is 1" latex, 1" memory foam, 6" polyfoam. It’s comfortable, but maybe a smidge on the firm side. Something with a little more plush might be nice. We are upgrading to a king, otherwise the Casper would be fine.

From my research, I am split between 3 main options.

  1. Three 2" blended Talalay layers #14, 19, 28 ILD. I like the idea of a nice soft cuddling mattress, but I am afraid that will be too soft or cause hammocking.

2 Same as above, but changing the layers to #19, 28, 32 ILD.

  1. Two 2" blended Talalay layers # 14 (or 19) and 28 ILD then a 4 in HD36-HQ foam layer. This is inspired by our current Casper. I put 4 inches because all the foam base layers seems to be thicker. Might be wrong here.

Thanks in advance for your advice and opinions!

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My suggestion would be option #2 in all talalay due to the wide shoulders and hips issue. Latex will last alot longer than polyfoam so keep that in mind as well as you hone your design. Now if you like it really soft you can go with something like 19T/19T/28T/32t but I would use the following thicknesses 2"/2"/3"/3" for it. Then if you need more travel in the shoulders you can also zone that area of the support layer with softer talalay. Since you’re moving to a king I would also do split layers (ie twin XLs) so that you can make adjustments to either side without affecting your partner’s comfort at all.

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Thank you for the advice. I had seen plenty of split king mattresses but hadn’t thought about doing that myself.

Why the 19T, 19T instead of 14T, 19T if more softness is desired? Is 14 just too soft?

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Yes, 14ILD is extremely soft so at your BMI’s I think you’d be better off going with more depth on the 19ILD comfort layer to get that cradling feeling you’re after. That said certainly feel free to experiment if you still think the super soft layer might work. We can really only help you make an informed decision, in the end only you know what really worked best.

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I understand! Thanks so much for answering my dumb questions. Just trying to get a grip on things.

Does Talalay vs Dunlop matter as much in base layers as it does in comfort and support layers?

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Dunlop tends to provide the best support in the lower layers because it firms up faster than talalay. The exception is when you need more travel such as in the case where body shapes (wide shoulders/small waist/big rear) require it to get proper alignment.

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